All Problems

Electromagnetic Induction. Maxwells Equations

Problem 3.324

A current I0=1.9I_{0}=1.9 A flows in a long closed solenoid. The wire it is wound of is in a superconducting state. Find the current flowing in the solenoid when the length of the solenoid is increased by η=5%\eta=5 \%

Reveal Answer
I=I0(1+η)=2 AI=I_{0}(1+\eta)=2 \mathrm{~A}
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